Andrew s



Patented May I6, |899. A. S. BROWN.

No. 625,0l7.

C L A M P.

(Application mea occ. 22, 1599,)

(N0 Model.)

lf M

A TTOHNEYJ' we Nonms PETER: cu.V Mmmumo.. wAsnms'roN, n. c.

NrTnD STATES PATENT OFFICE.

ANDREW S. BROWN, OF NEW YORK, N. Y.

CLAMP.

SPECIFICATION forming part of Letters Patent No. 625,017, dated May 16, 1899.

Application filed ctober422, 1898. Serial No. 694,278.l (No model.) l

.To @ZZ whom, t 'may concern,.-

Be it known that I, ANDREW S. BROWN, a

' citizen of the United States, residing at New York, (Brooklyn,) lin the county of Kings and State of NewYork, have invented certain new and useful Improvements in Clamps, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to clamps; and the object thereof is to provide animproved device of this class which is designed to secure and press together strips or pieces of wood or other material which it is desired to glue, nail, or otherwise connect.

The invention is fully disclosed in the following speci'ficatiomof which the accompanying drawings form a part, in which'- Figure 1 is a side view of one form of my` improved clamp; Fig. 2,v a plan view thereof; Fig. 3, a View similar to Fig. 1, showing a modified form of construction; and Fig. 4, a section on theline 4 4 of Fig. 1.

In the drawings forming part of this speciiication the separate parts of my improvement are designated by the same numerals of reference in each of the views, and in the practice'of my invention, as shown in Figs. 1 and 2, I provide abase-bar 5, havingnotches or recesses 6 in the under side thereof, and the bar 5 is provided with two movable clamps,

Aone of which consists of a yoke 7, closed at the lower end 8 and adapted to enter the notches or recesses 6, and the upper end of which is open and provided with a block 9, which is pivoted therein by a bolt 10, one end of which is screw-threaded and provided with a nut 11, having a handle 12.

By means of the nut 11 the sides of the yoke 7 may be pressed against the block 9, so as to prevent said block from moving in the yoke, and said clamp,includin g the yoke 7 and block 9, may be adjusted longitudinally of the bar 5, as will be readily understood. The bar 5 is also provided with another movable clamp comprising a yoke-shaped frame 13, the lower end of which is closed at 14 and adapted to enter the notches or recesses 6 in the bottom of the bar 5, and the upper ends of the frames 13 are connected by a bolt or shaft 15, which passes therethrough, provided at one end with a` nut 16.

The Shaft 15 is provided cent1-any with a the handle-yoke 1S is a spring-operated pawl 20, which operates in connection with the pinion 17 and prevents said pinion from turning forwardly in the direction of the center of the bar ,5. I also provide a clamp-block 21, which iswedge-shaped in form on its upper side and provided with the transverse serrations or teeth 22, in connection with which the pinion 17 operates, and mounted on the sh-aft 15 is a spring-operated pawl 23, which also operates in connection with the transverse teeth or serrations 22 on the block 21. The block 21'is also preferably provided on the under side thereof with rollers 24, and the operation of this form of construction will be readily understood from the foregoing description when taken in connection with the .accompanying drawings and the following statement.

Both of the clamps above described are connected to the bar 5 in the desired position, as shown in Fig. 1, and the material to be pressed together is placed .between said clamps. The handle 19 is then depressed, and the block 21 is forced forwardly bythe pinion 17, and the pawl 23 prevents the reverse movement of the block 21 as long as the handle 19 is depressed, and the material to be nailed, glued, or otherwise connected may thus be rmly clamped or pressed, together, as will be readily understood.

In the construction shown in Figs. 3 and 4 the bar 5 is preferably composed of metal and provided with two longitudinal rows of perforations 25, and I provide a yoke-shaped frame consisting of two plates 26, which are connected at their lowery ends by bolts 27, passed through the perforations 25, so as to hold said plates rigidly. In this form of cona struction a rectangular clamping-block 28, having transverse teeth on its upper side, is employed, and the upper ends of the plates 26 are connected by a shaft 29, on whichare mounted the pinion 17, the handle-yoke 18, and the spring-operated pawl 23. The spring operated pau/120 is also employed in this construction, and the operation will be similar to that of the device shown in Figs. 1 and 2.

The frame shown in Fig. 3, consisting of the plates 26, may be adjusted longitudinally of the bar 5, as will be readily understood, by means of the bolts 27, and my improved clamp is simple in construction and operation and Well adapted to accomplish the result for which it is intended, and it Will be apparent that changes in and m'odiiications of the construction described may be made Without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, I I claim as new and desire to secure by Letters Patent- 1. A clamp for the purpose herein described, comprising a bar provided adjacent to one end with a clamping-block which is mounted A thereon,and adjacent tothe opposite end with a clamping-block mounted in a yoke-shaped frame longitudinally adjustable of said bar,

said clamping block being provided With transverse teeth on its upper side, and said frame being provided with a pinion mounted in its upper end and adapted to operate in connection with said transverse teeth, and a pivoted handle-bar, substantially as shown and described.

2. A clamp for the purpose herein described, comprisingabar provided adjacent to one end with a clamping-block which is mounted thereon, and adjacent to the opposite end with a clamping-block mounted in a yoke-shaped frame longitudinally adjustable of said bar, said clamping-block being provided with transverse teeth on its upper side, and said frame being provided with a pinion mounted l in its upper end and adapted to operate in connection With said transverse teeth, and a pivoted handle-bar,said handle-bar being provided With a spring-operated paWl which operates in connection With said pinion, substantially as shown and described.

3. A clamp for the purpose herein described, comprising a bar provided adjacent to one end with a clamping-block which is mounted thereon, and adjacent to the opposite end with a clamping-block mounted in a yokeshaped frame longitudinally adjustable of said bar, said clam ping-block being provided with transverse teeth on its upper side, and said frame being provided With a pinion mounted in its upper end and adapted to op-1 erate in connection with said transverse teeth,

and a pivoted handle-bar, said handle-bar be- A ing provided With a springoperated paWl which operates in connection with said pinion, and said frame being also provided with a pawl which operatesin connection With the transverse teeth on the block, substantially as shown and described.

4. A clamp for the purpose herein described, comprising a bar, an adjustable clampingblock mounted on one end thereof, and an adj ustable clamping-block mounted on the opposite end between the separate sides of a frame which is longitudinally adjustable on said bar, said last-named block being provided With transverse serrations or teeth in its upper side, and said frame being provided With a pivoted handle at its upper end, and a pinion which is adapted to operate in connection with said transverse teeth or serrations, substantially as shown and described.

5. A clamp tor the purpose herein described, comprising a bar, an adjustable clampingblock mounted on one end' thereof, and an adj ustable clamping-block mounted on the opposite end between the separate sides of a frame which is longitudinally adjustable on said bar, said last-named block being provided with transverse serrations or teeth in its upper side, and said frame being provided with a pivoted handle at its upper end, and a pinion which is adapted to operate in connection with said transverse teeth or serrations, said frame being also provided With a spring-operated pawl which operates in connection With said pinion, substantially as shown and described.

6. A clamp for the purpose herein described, comprising a bar, an adjustable clampingblock mounted on one end. thereof, and an adjustable clamping-block mounted on the opposite end between the separate sides of a frame which is longitudinally adjustable on said bar,said last-named block being provided with transverse serrations or teeth in its upper side, and said frame being provided with a pivoted handle at its upper end, and a pinion Which is adapted lto operate in connection with said transverse teeth or serrations, said frame being also provided With a spring-op- IOO erated pawl Which operates in connection With said pinion, and the shaft of said pinion being provided With a paWl which operates in connection with said transverse teeth or serrations on said block, substantially as shown and described.

7. Aclamp, comprisingabar, anadjustable clamping-block mounted on one end thereof andheld in place thereon by a yoke-shaped frame, said bar being provided at the opposite end with an adjustable yoke-shaped frame in which is mounted a Wedge-shaped clampingblock which rests upon the upper side of said bar and devices connected With said yokesh'aped frame for forcing said block along said bar, substantially as shown and described.

8. A clamp, comprising a bar on one end of which is mounted an adjustable clampingblock, the opposite end of said bar being also provided with an adjustable clamping-block Which is mounted thereon and held thereon by a yoke-shaped frame, said last-named block being inclined on itsupper surface and provided with transverse teeth, a handle pivotally mounted on the upper end of said yokeshaped frame, and a pinion mounted in said IIO IIS

operates in connection With said pinion, substantially as shown'and described.

9. A clamp, comprising a bar on one end of `Which. is mounted an adjustable clamping block, the opposite endof said bar being also provided with an adjustable clamping-block which is mounted thereon and held thereon bya yoke-shaped frame, said last-named block being inclined on its upper surface and provided With transverse teeth, a handle pivot- Vally mounted on the upper end of said `yokeshaped frame, and a pinion mounted in said frame and adapted to operate in connection with said transverse teeth, said handle being provided with a spring-operated pawl which operates in connection with said pinion, and the shaft of said pinion being provided with a paw] Which operates in connection with said transverse teeth on the clamping-block, substantially as shown and described.

10. A clamp, comprising a bar 5 having transverse notches or recesses 6 in its under side, a clamp mounted on one end thereof, consisting of a yoke-shaped frame 7 and a block 9 mounted therein, and another cla-mp mounted on the other end of said bar, and consist# 

